keyword
MENU ▼
Read by QxMD icon Read
search

Heart Tran

keyword
https://www.readbyqxmd.com/read/28094679/a-retrospective-analysis-of-a-pediatric-tele-echocardiography-service-to-treat-triage-and-reduce-trans-pacific-transport
#1
Christopher A Rouse, Brandon T Woods, C Becket Mahnke
Introduction Tele-echocardiography can ensure prompt diagnosis and prevent the unnecessary transport of infants without critical congenital heart disease, particularly at isolated locations lacking access to tertiary care medical centers. Methods We retrospectively reviewed all infants who underwent tele-echocardiography at a remote 16-bed level IIIB NICU from June 2005 to March 2014. Tele-echocardiograms were completed by cardiac sonographers in Okinawa, Japan, and transmitted asynchronously for review by pediatric cardiologists in Hawaii...
January 1, 2017: Journal of Telemedicine and Telecare
https://www.readbyqxmd.com/read/28094481/influence-of-the-thoracic-epidural-anesthesia-on-the-left-ventricular-function-an-echocardiographic-study
#2
Miguel Miró, Filippo Sanfilippo, Fátima Pérez, Santiago García Del Valle, Juan I Gómez-Arnau
BACKGROUND: Thoracic epidural anesthesia (TEA) is widely used for major surgery, but studies assessing its impact on left ventricular (LV) systolic and diastolic function are limited, and such studies have assessed patients already under general anesthesia and/or receiving volume expansion between examinations. METHODS: Observational study at a secondary university hospital including consecutive awake patients undergoing major abdominal surgery without significant pre-existing cardiac disease...
January 17, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28091966/aortic-regurgitation-generates-a-kinematic-obstruction-which-hinders-left-ventricular-filling
#3
Ikechukwu Okafor, Vrishank Raghav, Jose F Condado, Prem A Midha, Gautam Kumar, Ajit P Yoganathan
An incompetent aortic valve (AV) results in aortic regurgitation (AR), where retrograde flow of blood into the left ventricle (LV) is observed. In this work, we parametrically characterized the detailed changes in intra-ventricular flow during diastole as a result of AR in a physiological in vitro left-heart simulator (LHS). The loss of energy within the LV as the level of AR increased was also assessed. The validated LHS consisted of an optically-clear, flexible wall LV and a modular AV holder. Two-component, planar, digital particle image velocimetry was used to visualize and quantify intra-ventricular flow...
January 13, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28091942/all-trans-retinoic-acid-supplementation-prevents-cardiac-fibrosis-and-cytokines-induced-by-methylglyoxal
#4
Umadevi Subramanian, Devipriya Nagarajan
Methylglyoxal (MG), a metabolic intermediate of glycolysis is a precursor for endogeneous production of advanced glycation end-products. The increased production of MG have negative influence over the structure and function of different biomolecules and thus plays an important role in the pathogenesis of diabetic cardiac complications. Retinoic acid (RA), an active metabolite of vitamin A, has a major role in preventing cardiac remodeling and ventricular fibrosis. Hence, the objective of the present study was to determine whether rats administered with all-trans retinoic acid (RA) could attenuate MG induced pathological effects...
January 14, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28091832/utility-and-safety-of-the-safesept%C3%A2-transseptal-guidewire-for-electrophysiology-studies-with-catheter-ablation-in-pediatric-and-congenital-heart-disease
#5
Joseph J Knadler, Jeffrey B Anderson, Ahmad S Chaouki, Richard J Czosek, Chad Connor, Timothy K Knilans, David S Spar
PURPOSE: The atrial transseptal procedure is used in catheter ablation of left-sided arrhythmias. Studies in adult patients have shown the SafeSept™ transseptal guidewire (SSTG) to be effective in atrial transseptal procedures. We analyzed our 5-year experience with SSTG use in pediatric and congenital heart disease patients undergoing catheter ablation. METHODS: This is a single-center retrospective analysis of patients undergoing catheter ablation from 2009 to 2014...
January 14, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28088844/role-of-contrast-ct-for-the-diagnosis-and-the-prognosis-of-suspected-lvad-thrombosis
#6
Bill C Tran, Prabhjot S Nijjar
BACKGROUND: There is an urgent need for further studies evaluating the role of imaging modalities in the management of left ventricular assist device (LVAD) thrombosis. This study reviews the role of computed tomography (CT) in the diagnosis of suspected LVAD thrombosis. METHODS: All contrast chest CTs performed in patients with suspected LVAD thrombosis at the University of Minnesota between January 2008 and April 2014 were reviewed. Significant CT findings were identified, operative notes were reviewed, and patient outcomes were reported...
January 15, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28078076/sex-dependent-alteration-of-cardiac-cytochrome-p450-gene-expression-by-doxorubicin-in-c57bl-6-mice
#7
Marianne K O Grant, Davis M Seelig, Leslie C Sharkey, Beshay N Zordoky
BACKGROUND: There is inconclusive evidence about the role of sex as a risk factor for doxorubicin (DOX)-induced cardiotoxicity. Recent experimental studies have shown that adult female rats are protected against DOX-induced cardiotoxicity. However, the mechanisms of this sexual dimorphism are not fully elucidated. We have previously demonstrated that DOX alters the expression of several cytochrome P450 (CYP) enzymes in the hearts of male rats. Nevertheless, the sex-dependent effect of DOX on the expression of CYP enzymes is still not known...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28067471/traditional-and-novel-tools-to-probe-the-mitochondrial-metabolism-in-health-and-disease
#8
REVIEW
Yanfei Zhang, José L Avalos
Mitochondrial metabolism links energy production to other essential cellular processes such as signaling, cellular differentiation, and apoptosis. In addition to producing adenosine triphosphate (ATP) as an energy source, mitochondria are responsible for the synthesis of a myriad of important metabolites and cofactors such as tetrahydrofolate, α-ketoacids, steroids, aminolevulinic acid, biotin, lipoic acid, acetyl-CoA, iron-sulfur clusters, heme, and ubiquinone. Furthermore, mitochondria and their metabolism have been implicated in aging and several human diseases, including inherited mitochondrial disorders, cardiac dysfunction, heart failure, neurodegenerative diseases, diabetes, and cancer...
January 9, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28062549/redo-procedures-for-degenerated-stentless-aortic-xenografts-and-the-role-of-valve-in-valve-transcatheter-techniques%C3%A2
#9
Herko Grubitzsch, Sebastian Zobel, Torsten Christ, Sebastian Holinski, Karl Stangl, Sascha Treskatsch, Volkmar Falk, Michael Laule
OBJECTIVES: This study evaluates reinterventions for degenerated stentless aortic xenografts. METHODS: Between 2010 and 2015, 52 consecutive patients (age 72.3 ± 9.7 years, EuroSCORE II 11.1 ± 8.9%) underwent reintervention for failed stentless aortic valves (60% porcine, 40% pericardial, 87% sub-coronary, 81% isolated/combined regurgitation). RESULTS: Based on age, EuroSCORE II, the presence of pulmonary hypertension, renal failure, a patent internal mammary artery graft and required concomitant procedures, the heart team assigned 25 patients to reoperation and 27 to valve-in-valve transcatheter aortic valve implantation (ViV-TAVI)...
January 6, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28045412/transcatheter-aortic-valve-implantation-with-the-edwards-sapien-3-valve-first-experiences-in-turkey
#10
Abdullah Nabi Aslan, Serdal Baştuğ, Hacı Ahmet Kasapkara, Hüseyin Ayhan, Hakan Süygün, Telat Keleş, Tahir Durmaz, Nihal Akar Bayram, Emine Bilen, Engin Bozkurt
OBJECTIVE: Transcatheter aortic valve implantation (TAVI) has shown promising results in patients with severe aortic stenosis (AS) at high risk for open heart surgery. We aimed to evaluate outcomes of patients who underwent TAVI with Edwards SAPIEN 3 Transcatheter Heart Valve (S3), a second-generation TAVI device. METHODS: Between November 2014 and June 2016, 31 high-risk patients received balloon-expandable S3 valve at Atatürk Training and Research Hospital that has the largest case series in Turkey...
December 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28042345/biomimetic-microstructure-morphology-in-electrospun-fiber-mats-is-critical-for-maintaining-healthy-cardiomyocyte-phenotype
#11
Rutwik Rath, Jung Bok Lee, Truc-Linh Tran, Sean F Lenihan, Cristi L Galindo, Yan Ru Su, Tarek Absi, Leon M Bellan, Douglas B Sawyer, Hak-Joon Sung
Despite recent advances in biomimetic substrates, there is still only limited understanding of how the extracellular matrix (ECM) functions in the maintenance of cardiomyocyte (CM) phenotype. In this study, we designed electrospun substrates inspired by morphologic features of non-failing and failing human heart ECM, and examined how these substrates regulate phenotypes of adult and neonatal rat ventricular CMs (ARVM and NRVM, respectively). We found that poly(ε-caprolactone) fiber substrates designed to mimic the organized ECM of a non-failing human heart maintained healthy CM phenotype (evidenced by cell morphology, organized actin/myomesin bands and expression of β-MYH7 and SCN5A...
March 2016: Cellular and Molecular Bioengineering
https://www.readbyqxmd.com/read/28011837/non-invasive-model-based-measures-of-ventricular-electrical-dyssynchrony-for-predicting-crt-outcomes
#12
Christopher T Villongco, David E Krummen, Jeffrey H Omens, Andrew D McCulloch
AIMS: Left ventricular activation delay due to left bundle branch block (LBBB) is an important determinant of the severity of dyssynchronous heart failure (DHF). We investigated whether patient-specific computational models constructed from non-invasive measurements can provide measures of baseline dyssynchrony and its reduction after CRT that may explain the degree of long-term reverse ventricular remodelling. METHODS AND RESULTS: LV end-systolic volume reduction (ΔESVLV) measured by 2D trans-thoracic echocardiography in eight patients following 6 months of CRT was significantly (P < 0...
December 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011359/detection-of-a-rare-complication-of-endovascular-treatment-for-brain-avm-by-echocardiography
#13
Mozhgan Parsaee, Sedigheh Saedi, Sepideh Emami, Alireza Serati
A brain arteriovenous malformation (AVM) is a congenital malformation of the vascular system, in which an abnormal short circuit (vascular malformation) connects cerebral arteries and veins. When the brain AVMs are diagnosed, the majority of them must be closed with surgical or endovascular treatment; because only a small portion of the brain AVMs remain asymptomatic during the patient's life. Endovascular trans-arterial embolization using Onyx is a suitable method of treating brain AVMs. Previously known complications of onyx usage are bleeding and neurologic deficits...
December 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28001085/biomarkers-of-dairy-fat-intake-and-risk-of-cardiovascular-disease-a-systematic-review-and-meta-analysis-of-prospective-studies
#14
Jingjing Liang, Quan Zhou, Amakye William Kwame, Yixiang Su, Zheqing Zhang
BACKGROUND: Circulating biomarkers of dairy fat provide objective measures of dairy fat intake and facilitate conclusions relevant to populations with different diets and susceptibility to cardiovascular diseases (CVD). OBJECTIVE: To assess the relationship between circulating pentadecanoic acid (15:0), heptadecanoic acid (17:0) and trans-palmitoleic acid (trans-16:1n-7) and the risk of CVD. METHODS: Pubmed, Medline and Embase were searched for prospective cohort studies of the relationship between biomarkers of dairy fat and CVD risk, which included coronary heart disease (CHD), stroke, heart failure and CVD mortality, supplemented by bibliographies of retrieved articles and previous reviews...
December 21, 2016: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/27995912/conformer-specific-hydrogen-atom-tunnelling-in-trifluoromethylhydroxycarbene
#15
Artur Mardyukov, Henrik Quanz, Peter R Schreiner
Conformational control of organic reactions is at the heart of the biomolecular sciences. To achieve a particular reactivity, one of many conformers may be selected, for instance, by a (bio)catalyst, as the geometrically most suited and appropriately reactive species. The equilibration of energetically close-lying conformers is typically assumed to be facile and less energetically taxing than the reaction under consideration itself: this is termed the 'Curtin-Hammett principle'. Here, we show that the trans conformer of trifluoromethylhydroxycarbene preferentially rearranges through a facile quantum-mechanical hydrogen tunnelling pathway, while its cis conformer is entirely unreactive...
January 2017: Nature Chemistry
https://www.readbyqxmd.com/read/27989092/ventricular-embolization-of-two-edwards-sapien-xt-prosthetic-valves-during-trans-subclavian-aortic-valve-implantation
#16
Serdal Baştuğ, Abdullah Nabi Aslan, Cenk Sarı, Hacı Ahmet Kasapkara, Hüseyin Ayhan, Engin Bozkurt
Transcatheter aortic valve implantation (TAVI) is an alternative treatment method in high-risk patients with severe aortic stenosis (AS). Although TAVI is a minimally invasive procedure it is not free from complications. Here, the case is presented of a 61-year-old woman who underwent trans-subclavian aortic valve implantation to treat severe symptomatic rheumatic AS. The procedure was complicated by the ventricular embolization of two Edwards SAPIEN XT valves during the procedure, but was successfully managed with emergency open-heart surgery...
January 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27989091/transcatheter-valve-in-valve-implantation-in-a-degenerated-mitral-bioprosthesis-using-a-trans-septal-anterograde-approach-and-3-d-transesophageal-echocardiography-guidance
#17
Piotr N Rudzinski, Zofia Dzielinska, Adam Witkowski, Marek Konka, Kulej-Lyko Katarzyna, Marcin Demkow
Degenerated and dysfunctional prosthetic valves are usually replaced surgically. However, repeated cardiac surgery can cause prohibitive risk, especially in patients with many associated co-morbidities. Transcatheter valve-in-valve implantation (TVIV) is a novel, technically very challenging, but less invasive alternative treatment for patients with unacceptably high surgical risk of degenerated prosthetic valves. The method is attractive because it takes advantage of the presence of the degenerated prosthesis, which serves as an anchoring zone...
January 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27988371/fine-mapping-of-qt-regions-in-global-populations-refines-previously-identified-qt-loci-and-identifies-signals-unique-to-african-and-hispanic-descent-populations
#18
Christy L Avery, Christina L Wassel, Melissa A Richard, Heather M Highland, Stephanie Bien, Niha Zubair, Elsayed Z Soliman, Myriam Fornage, Suzette J Bielinski, Ran Tao, Amanda A Seyerle, Sanjiv J Shah, Donald M Lloyd-Jones, Steven Buyske, Jerome I Rotter, Wendy S Post, Stephen S Rich, Lucia A Hindorff, Janina M Jeff, Ralph V Shohet, Nona Sotoodehnia, Dan Yu Lin, Eric A Whitsel, Ulrike Peters, Christopher A Haiman, Dana C Crawford, Charles Kooperberg, Kari E North
BACKGROUND: The electrocardiographically measured QT interval (QT) is heritable and its prolongation is an established risk factor for several cardiovascular DISEASES: Yet, most QT genetic studies have been performed in European ancestral populations, possibly reducing their global relevance. OBJECTIVE: To leverage diversity and improve biologic insight, we fine-mapped 16 of the 35 previously identified QT loci (46%) in populations of African American (n=12,410) and Hispanic/Latino (n=14,837) ancestry...
December 14, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27974158/clinicopathological-features-of-cardiac-glycolipid-storage-disease-in-an-adult-pug
#19
J N S N Tran, K J Ash, S V Seshan, K M Kelly
A 12-year-old neutered male pug suffered cardiac arrest and died under general anaesthesia during diagnostic imaging for evaluation of exercise intolerance and respiratory crisis. Histopathological evaluation revealed two types of storage material, glycolipid and lipopigment, having differential distributions in multiple organs. The heart was most strikingly affected and other less affected tissues included the liver, brain, kidneys and skin. Cardiomyocytes were swollen with extensive sarcoplasmic vacuolation together with coalescing areas of myocardial fibrosis...
December 11, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27966923/nonoccupational-exposure-to-pyrethroids-and-risk-of-coronary-heart-disease-in-the-chinese-population
#20
Jiajun Han, Liqin Zhou, Mai Luo, Yiran Liang, Wenting Zhao, Peng Wang, Zhiqiang Zhou, Donghui Liu
Pyrethroids and the metabolites have been frequently observed in the environment. Animal data suggests that pyrethroids can induce adverse effect on the cardiovascular system but there are no human studies examining pyrethoids exposure as a risk for coronary heart disease (CHD). We analyzed three nonspecific pyrethroids metabolites in urine and studied the association with CHD risk. A total of 72 CHD patients and 136 healthy subjects were recruited in Shanxi province in China from 2013 to 2014 by matching age and gender...
January 3, 2017: Environmental Science & Technology
keyword
keyword
59992
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"